1/4"-20 x 3-3/4" Grade 5 Plain Finish Hex Cap Screw / THREAD DIRECTION: RIGHT-HAND FASTENER LENGTH: 3.750 INCHES NOMINAL HEAD STYLE: C1 HEXAGON HEAD DIAMETER: 20.00 INCHES NOMINAL NOMINAL THREAD DIAMETER: 0.25 INCHES THREAD QUANTITY PER INCH: 20 THREAD SERIES DESIGNATOR: UNC NONDEFINITIVE SPEC/STD DATA: 5 GRADE AND PLAIN FINISH